CN106891419A - A kind of preparation method of concave convex rod - Google Patents
A kind of preparation method of concave convex rod Download PDFInfo
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- CN106891419A CN106891419A CN201710235707.4A CN201710235707A CN106891419A CN 106891419 A CN106891419 A CN 106891419A CN 201710235707 A CN201710235707 A CN 201710235707A CN 106891419 A CN106891419 A CN 106891419A
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- Prior art keywords
- convex rod
- concave convex
- preparation
- attapulgite
- rod according
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
- B01J2/04—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops in a gaseous medium
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The invention belongs to concave convex rod processing technique field, there is provided a kind of preparation method of concave convex rod, step is：Sieved after attapulgite is ground, prepare attapulgite；Add sodium chloride solution to soak to the attapulgite, dry afterwards；Fluidized bed granulation；Whole grain；Compressing tablet；Packaging.The concave convex rod that the present invention makes, formed product is good, shape, length uniformity, and column any surface finish is neat, can meet high-precision requirement, it is adaptable to high-tech area application.
Description
Technical field
The invention belongs to concave convex rod processing technique field, in particular it relates to a kind of preparation method of concave convex rod.
Background technology
Concave convex rod belongs to the rare precious nonmetallic mineral in the world, is the needed by human body of representative rich in 12 kinds of selenium, iodine, zinc etc.
Life trace element, the function with medicine, bioactive substance carrier, and with micro biological element characteristic bioengineering material
The performance of material.Concave convex rod, in China's rich reserves, is a kind of with specialty fibers crystal habit structure, magnesium alumino metasilicate containing Shuifu County
Salt natural minerals, in high-tech every field and the ecological agriculture, such as petrochemical industry, building materials, space flight and aviation, cosmetics are ecological
The industry extensive use such as enviromental protection and improvement.
The powder raw material for making concave convex rod is that palygorskite also referred to as attapulgite is crushed into obtained, in petrochemical industry, space flight
Aviation, ecological environmental protection and military industry field need the column of shaping mostly, that is, need for i.e. attapulgite to be fabricated to post
Shape concave convex rod, to be applicable the use demand of above-mentioned correlative technology field.
The moulding process of current concave convex rod is mainly using to adding adhesive to be made slurry in attapulgite, then by slurry
It is put into the method production column concave convex rod of banded extruder extrusion forming.It is the concave convex rod length that is made, big but this method has deficiency
Small, shape is uneven, and column end face is not concordant, there is flash, and column surface is not bright and clean, during transport and filling, post
The corner angle of shape body mutually collide generation friction, and abrasion are big, dust is too high, cannot be used especially in spacecraft.
The content of the invention
It is of the invention it is an object of the invention to provide a kind of preparation method of concave convex rod for defect of the prior art
Purpose is shaping length, size, the uneven deficiency of shape for existing concave convex rod, there is provided a kind of making side of concave convex rod
Method.Using the concave convex rod of making of the invention, formed product is good, shape, length uniformity, and column any surface finish is neat,
High-precision requirement can be met, it is adaptable to high-tech area application.
The present invention provides a kind of preparation method of concave convex rod, and methods described comprises the following steps：
（1）Sieved after attapulgite is ground, prepare attapulgite；
（2）To the step（1）In attapulgite add sodium chloride solution soak 4-5 hours, dry afterwards；
（3）Fluidized bed granulation：By the step（2）Middle dried object, adds granulation in fluidised bed granulator, used in pelletization
Spray be polyvinylpyrrolidonesolution solution, being passed through hot-air after the completion of spraying again carries out fluidized drying；
（4）The step（3）In dried object the concave convex rod shaped article of required shape and specification is made of molding press；
（5）Packaging.
Fluidized bed granulation is also referred to as a granulation, is by the mixing of conventional wet lay granulation, granulation, dries 3 steps close
One step completed method in container is closed, in fluidised bed granulator, compressed air and spray solution are by a certain percentage by nozzle mist
Change and be sprayed on fluidized-bed layer and be on the material powders of fluidized state.Drop contact is moistened and is flocked on to powder first
Particle core is formed it into around it, while the liquid by continuing to spray into is dropped in generation bonding bridging action on particle core surface again,
Make between particle core and particle core, be combined with each other between particle core and particle, gradually form larger particle.After drying, powder
Between liquid bridge become solid bridge, obtain final product the porous particle of profile rounding.Because fluidized bed granulation overall process is not acted on by external force, only
Influenceed by bed interior air-flow, Gu obtained grain graininess is uniform, without whole grain, mobility, compact property are good, with the operating time
Short, loss of material is few, production efficiency advantage high.
Preferably, the sodium chloride solution mass fraction is 5.6-7.8%.Concave convex rod is modified with sodium salt, sodium from
Son act as the effect of negative electrical charge on silicon-oxy tetrahedron, the ion of these low electricity price large radius and the intermolecular forces of construction unit layer
It is weaker simultaneously because easily disperseing in the presence of interlayer solvent, to peel off so that interlayer cation has interchangeability, make again concavo-convex
Rod soil has larger inner surface, and this charging property and huge specific surface area make it have stronger adsorptivity.
Preferably, the polyvinylpyrrolidonesolution solution mass fraction is 5.2-8.3%.The cross-linking polyethylene pyrroles
Alkanone is white or near-white, with the runny powder of hygroscopicity, the network with very strong expansion character and with multiclass material
Conjunction ability.The cross-linking polyethylene pyrrolidone has excellent mobility and a plastic deformability, thus they have it is excellent
Caking property, this property gives good compressibility in spraying.
Preferably, the inlet temperature in the fluid bed granulation is 28-35 DEG C.Temperature is too low, and solvent can not be timely
Volatilize and make powder excessive moistening, amount of powder sticks on wall not energy fluidizing, the group of having easily caused；Temperature is too high to cause molten
Agent is dried and can not effectively pelletized too early.
Preferably, the power of fan of the fluid bed granulation is 3-5Kw.
Preferably, the air quantity of the fluid bed granulation is 0.25-0.65m3/min.Air quantity is excessive, and solvent water is waved
Send out too fast, bonding force weakens, it is impossible to is fully contacted with material, makes particle size distribution wide, fine powder is more；When air quantity is too low, solvent
Can not in time volatilize, too be bonded between material fine powder, it may appear that bulky grain, it is agglomerating.
Preferably, fluidised bed granulator selects fluidized bed coating granulator.
Preferably, 100-110 mesh sieves are crossed after the concave convex rod raw mill.
Compared with prior art, the present invention has following beneficial effect：
Cylinder concave convex rod made by sheet of the invention is uniform, excellent product performance.Maximum feature of the invention is using fluidisation
Bed granulation, formed product is good, and shape, length uniformity, column any surface finish are neat, can meet high-precision requirement, is applicable
In high-tech area application.
Specific embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.
Embodiment 1
The preparation method of the concave convex rod that the present embodiment is provided, methods described comprises the following steps：
（1）Sieved after attapulgite is ground, prepare attapulgite, 110 mesh sieves are crossed after the concave convex rod raw mill；
（2）To the step（1）In attapulgite add sodium chloride solution soak 4 hours, dry afterwards, the sodium chloride solution
Mass fraction is 7.8%；
（3）Fluidized bed granulation：By the step（2）Middle dried object, adds granulation in fluidised bed granulator, used in pelletization
Spray be polyvinylpyrrolidonesolution solution, being passed through hot-air after the completion of spraying again carries out fluidized drying, the polyethylene pyrrole
Pyrrolidone liquid quality fraction is 5.2%, and the inlet temperature in the fluid bed granulation is 35 DEG C, the fluidized bed granulation
The power of fan of process is 5Kw, and the air quantity of the fluid bed granulation is 0.25m3/ min, fluidised bed granulator is from fluidisation
Bed layering pelletization machine；
（4）The step（3）In dried object the concave convex rod shaped article of required shape and specification is made of molding press；
（5）Packaging.
Concavo-convex rod shape manufactured in the present embodiment, length uniformity, column any surface finish are neat.
Embodiment 2
The preparation method of the concave convex rod that the present embodiment is provided, methods described comprises the following steps：
（1）Sieved after attapulgite is ground, prepare attapulgite, 100 mesh sieves are crossed after the concave convex rod raw mill；
（2）To the step（1）In attapulgite add sodium chloride solution soak 5 hours, dry afterwards, the sodium chloride solution
Mass fraction is 5.6%；
（3）Fluidized bed granulation：By the step（2）Middle dried object, adds granulation in fluidised bed granulator, used in pelletization
Spray be polyvinylpyrrolidonesolution solution, being passed through hot-air after the completion of spraying again carries out fluidized drying, the polyethylene pyrrole
Pyrrolidone liquid quality fraction is 8.3%, and the inlet temperature in the fluid bed granulation is 28 DEG C, the fluidized bed granulation
The power of fan of process is 3Kw, and the air quantity of the fluid bed granulation is 0.25-0.65m3/ min, fluidised bed granulator choosing
Use fluidized bed coating granulator；
（4）The step（3）In dried object the concave convex rod shaped article of required shape and specification is made of molding press；
（5）Packaging.
Concavo-convex rod shape manufactured in the present embodiment, length uniformity, column any surface finish are neat.
Embodiment 3
The preparation method of the concave convex rod that the present embodiment is provided, methods described comprises the following steps：
（1）Sieved after attapulgite is ground, prepare attapulgite, 105 mesh sieves are crossed after the concave convex rod raw mill；
（2）To the step（1）In attapulgite add sodium chloride solution soak 4 hours, dry afterwards, the sodium chloride solution
Mass fraction is 7.2%；
（3）Fluidized bed granulation：By the step（2）Middle dried object, adds granulation in fluidised bed granulator, used in pelletization
Spray be polyvinylpyrrolidonesolution solution, being passed through hot-air after the completion of spraying again carries out fluidized drying, the polyethylene pyrrole
Pyrrolidone liquid quality fraction is 6.5%, and the inlet temperature in the fluid bed granulation is 30 DEG C, the fluidized bed granulation
The power of fan of process is 4Kw, and the air quantity of the fluid bed granulation is 0.40m3/ min, fluidised bed granulator is from fluidisation
Bed layering pelletization machine；
（4）The step（3）In dried object the concave convex rod shaped article of required shape and specification is made of molding press；
（5）Packaging.
Concavo-convex rod shape manufactured in the present embodiment, length uniformity, column any surface finish are neat.
Embodiment 4
The preparation method of the concave convex rod that the present embodiment is provided, methods described comprises the following steps：
（1）Sieved after attapulgite is ground, prepare attapulgite, 104 mesh sieves are crossed after the concave convex rod raw mill；
（2）To the step（1）In attapulgite add sodium chloride solution soak 5 hours, dry afterwards, the sodium chloride solution
Mass fraction is 7.3%；
（3）Fluidized bed granulation：By the step（2）Middle dried object, adds granulation in fluidised bed granulator, used in pelletization
Spray be polyvinylpyrrolidonesolution solution, being passed through hot-air after the completion of spraying again carries out fluidized drying, the polyethylene pyrrole
Pyrrolidone liquid quality fraction is 7.4%, and the inlet temperature in the fluid bed granulation is 32 DEG C, the fluidized bed granulation
The power of fan of process is 3Kw, and the air quantity of the fluid bed granulation is 0.35m3/ min, fluidised bed granulator is from fluidisation
Bed layering pelletization machine；
（4）The step（3）In dried object the concave convex rod shaped article of required shape and specification is made of molding press；
（5）Packaging.
Concavo-convex rod shape manufactured in the present embodiment, length uniformity, column any surface finish are neat.
Embodiment 5
The preparation method of the concave convex rod that the present embodiment is provided, methods described comprises the following steps：
（1）Sieved after attapulgite is ground, prepare attapulgite, 102 mesh sieves are crossed after the concave convex rod raw mill；
（2）To the step（1）In attapulgite add sodium chloride solution soak 5 hours, dry afterwards, the sodium chloride solution
Mass fraction is 6.3%；
（3）Fluidized bed granulation：By the step（2）Middle dried object, adds granulation in fluidised bed granulator, used in pelletization
Spray be polyvinylpyrrolidonesolution solution, being passed through hot-air after the completion of spraying again carries out fluidized drying, the polyethylene pyrrole
Pyrrolidone liquid quality fraction is 7.2%, and the inlet temperature in the fluid bed granulation is 30 DEG C, the fluidized bed granulation
The power of fan of process is 3-5Kw, and the air quantity of the fluid bed granulation is 0.31m3/ min, fluidised bed granulator is from stream
Change bed layering pelletization machine；
（4）The step（3）In dried object the concave convex rod shaped article of required shape and specification is made of molding press；
（5）Packaging.
Concavo-convex rod shape manufactured in the present embodiment, length uniformity, column any surface finish are neat.
Embodiment 6
The preparation method of the concave convex rod that the present embodiment is provided, methods described comprises the following steps：
（1）Sieved after attapulgite is ground, prepare attapulgite, 108 mesh sieves are crossed after the concave convex rod raw mill；
（2）To the step（1）In attapulgite add sodium chloride solution soak 4 hours, dry afterwards, the sodium chloride solution
Mass fraction is 5.9%；
（3）Fluidized bed granulation：By the step（2）Middle dried object, adds granulation in fluidised bed granulator, used in pelletization
Spray be polyvinylpyrrolidonesolution solution, being passed through hot-air after the completion of spraying again carries out fluidized drying, the polyethylene pyrrole
Pyrrolidone liquid quality fraction is 6.6%, and the inlet temperature in the fluid bed granulation is 29 DEG C, the fluidized bed granulation
The power of fan of process is 3-5Kw, and the air quantity of the fluid bed granulation is 0.45m3/ min, fluidised bed granulator is from stream
Change bed layering pelletization machine；
（4）The step（3）In dried object the concave convex rod shaped article of required shape and specification is made of molding press；
（5）Packaging.
Concavo-convex rod shape manufactured in the present embodiment, length uniformity, column any surface finish are neat.
Specific embodiment of the invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can within the scope of the claims make various deformations or amendments, this not shadow
Sound substance of the invention.
Claims (8)
1. a kind of preparation method of concave convex rod, it is characterised in that methods described comprises the following steps：
Sieved after attapulgite is ground, prepare attapulgite；
To the step（1）In attapulgite add sodium chloride solution soak 4-5 hours, dry afterwards；
Fluidized bed granulation：By the step（2）Middle dried object, adds granulation in fluidised bed granulator, used in pelletization
Spray is polyvinylpyrrolidonesolution solution, and being passed through hot-air after the completion of spraying again carries out fluidized drying；
The step（3）In dried object the concave convex rod shaped article of required shape and specification is made of molding press；
Packaging.
2. the preparation method of concave convex rod according to claim 1, it is characterised in that：The sodium chloride solution mass fraction is
5.6-7.8%。
3. the preparation method of concave convex rod according to claim 1, it is characterised in that：The polyvinylpyrrolidonesolution solution matter
Amount fraction is 5.2-8.3%.
4. the preparation method of concave convex rod according to claim 1, it is characterised in that：Entering in the fluid bed granulation
Mouth temperature is 28-35 DEG C.
5. the preparation method of concave convex rod according to claim 1, it is characterised in that：The blower fan of the fluid bed granulation
Power is 3-5Kw.
6. the preparation method of concave convex rod according to claim 1, it is characterised in that：The air quantity of the fluid bed granulation
It is 0.25-0.65m3/min。
7. the preparation method of concave convex rod according to claim 1, it is characterised in that：Fluidised bed granulator selects fluid bed bag
Clothing granulator.
8. the preparation method of concave convex rod according to claim 1, it is characterised in that：Mistake after the concave convex rod raw mill
100-110 mesh sieves.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710235707.4A CN106891419A (en) | 2017-04-12 | 2017-04-12 | A kind of preparation method of concave convex rod |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710235707.4A CN106891419A (en) | 2017-04-12 | 2017-04-12 | A kind of preparation method of concave convex rod |
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| CN106891419A true CN106891419A (en) | 2017-06-27 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4120360A (en) * | 1977-05-16 | 1978-10-17 | Mobil Oil Corporation | Treating wells to mitigate flow-after-cementing |
| CN1739575A (en) * | 2005-09-15 | 2006-03-01 | 南京大学 | Solid and liquid attapulgite prepn for treating digestive tract diseases |
| CN101277701A (en) * | 2005-09-30 | 2008-10-01 | 贝林格尔·英格海姆维特梅迪卡有限公司 | Pharmaceutical preparation containing meloxicam |
| CN101757890A (en) * | 2010-02-05 | 2010-06-30 | 淮安金雨阳环保科技有限公司 | Preparation method of attapulgite filter material for selectively absorbing calcium ions and magnesium ions |
| CN104275096A (en) * | 2014-10-23 | 2015-01-14 | 兰州理工大学 | Preparation method of attapulgite porous membrane |
| CN106179187A (en) * | 2016-06-28 | 2016-12-07 | 安徽金联地矿科技有限公司 | A kind of production method of modified attapulgite silt earth repair materials |
| CN106512924A (en) * | 2016-12-14 | 2017-03-22 | 严帝 | Attapulgite adsorbent with large adsorption capacity and preparation method thereof |
-
2017
- 2017-04-12 CN CN201710235707.4A patent/CN106891419A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4120360A (en) * | 1977-05-16 | 1978-10-17 | Mobil Oil Corporation | Treating wells to mitigate flow-after-cementing |
| CN1739575A (en) * | 2005-09-15 | 2006-03-01 | 南京大学 | Solid and liquid attapulgite prepn for treating digestive tract diseases |
| CN101277701A (en) * | 2005-09-30 | 2008-10-01 | 贝林格尔·英格海姆维特梅迪卡有限公司 | Pharmaceutical preparation containing meloxicam |
| CN101757890A (en) * | 2010-02-05 | 2010-06-30 | 淮安金雨阳环保科技有限公司 | Preparation method of attapulgite filter material for selectively absorbing calcium ions and magnesium ions |
| CN104275096A (en) * | 2014-10-23 | 2015-01-14 | 兰州理工大学 | Preparation method of attapulgite porous membrane |
| CN106179187A (en) * | 2016-06-28 | 2016-12-07 | 安徽金联地矿科技有限公司 | A kind of production method of modified attapulgite silt earth repair materials |
| CN106512924A (en) * | 2016-12-14 | 2017-03-22 | 严帝 | Attapulgite adsorbent with large adsorption capacity and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 张玉龙: "《纳米复合材料手册》", 31 July 2005, 中国石化出版社 * |
| 程云章: "《药物制剂工程原理与设备》", 30 September 2009, 东南大学出版社 * |
| 高峰: "《药用高分子材料学》", 31 October 2014, 华东理工大学出版社 * |
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Application publication date: 20170627 |